Mantles



H. E. WHITE, Patented Feb. I4, |899. MACHINE FDR FOLDING AND INSERTING SHIHRING STRINGS INTO lNGANDESE-CNT No. 6I9,375.

MANTLES.

(Application filed Aug. 19, 1898.)

3 SheeIs-Sheet I.

(No Model.)

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H. E. WHITE.

MACHINE FUR FOLDING AND INSEBTING SHIRRING STRINGS INTO INGANDESGENT 3 Sheets-Sheet 2.

mn Model.) MANTLES.

(Application filed Aug. 19, 189B.)

Patented Feb. I4, |899.

H. E. WHITE. MACHINE FDR FOLDING AND INSERTING SHIRRING STRINGS INTO INCANDESCENT 3 Sheets-Sheet 3.

(No Model.) MANTLES.

(Application led Aug. 19, 189B.)

UNTTE STATES PATENT OFFICE.

HERBERT E. WHITE, OF NEW YORK, N. Y.

MACHINE FOR FOLDING AND INSERTING SHlRRlNG-STRINGS INTO INCANDESCENT MARTE SPECIFICATION forming part of Letters Patent No. 619,375, dated February 14, 1899.

Application filed August 19, 1398. Serial NO- 688,968. (No model.)

To a/ZZ whom t may con/cern.-

Be it known that I, HERBERT E. VHITE, of New York city, (Brooklym) county of Kings, and State of New York, have invented an Iniproved Machine for Folding and Inserting Shining-Strings into Incandescent Mantles, of which the following is a specification.

This invention relates to a machine which first turns down the upper end of the web of an incandescent mantle and then radially folds such doubled upper end and connects the several folds by an encircling thread. Thus the manipulations of folding and inserting a shirring-string into the mantle which have heretofore been performed by hand at considerable cost of skilled labor are by my machine performed automatically in a quick and accurate manner.

The construction and mode of operation of my machine will appear more fully from the accompanying drawings, in which- Figure lis a perspective view of the upper part of a mantle which is turned down, folded, and has the shirring-string inserted by my improved machine. Fig. 2 is a side elevation, partly in section, of the machine complete; Fig. 3, a front elevation, partly in section, thereof; Fig. e, a side elevation of the machine, showing the parts in a different position; Fig. 5, a plan of the machine; Fig. 6, a cross-section on line 6 6, Fig. 4; Fig. 7, a cross-section on line 7 7, Fig. 4; Fig. 8, a bottom view of the machine-head; Fig. 9, a top View of the barrel b. Figs. l0 and ll are similar views showing the folder in different positions; Fig. 12, a section on line 12 12, Fig. l1; Fig. 13, a vertical section of the machine-head and the upper part of the barrel,`showing said parts in engagement; and Fig. 14, a cross-section on line le 14, Fig. 13.

The letter a represents the bed-plate of the machine, from which project upwardly side by side a revoluble barrel b and a fixed tubular standard c. The barrel bis of a diameter to permit a mantle to be drawn over the same, and it terminates on top in a number of fingers h', separated by slots b2 and corresponding in number to the number of folds which are to be formed around the mantle.

The barrel b surrounds a fixed tube d of substantially the same height and having a single lateral slot cl. This slot permits the outward passage of a movable finger or folder e, having opening c2 at its outer end for the passage of the needle and eccentrically pivoted at e' to a revoluble shaft f, inclosed by tube d, so that the revolution of the shaft f causes a radial outward motion of the folder. The periods of revolution of the barrel b and shaft f are so timed that the latter makes a complete revolution while the former makes a fraction of a revolution equal to the distance between the centers of two adjoining slots b2. Thus as the barrel b is revolved the folder e will pass outward and inward through each of the successive slots b2 to form the folds in the mantle which is drawn over the barrel b, as hereinafter more fully described.

The barrel is shown to be revolved by handcrank g, upon the shaft g of which is mounted pinion g2, engaging circumferential gear g3, fast on barrel b. Upon the shaft g is, furthermore, mounted a large gear-wheel g', which by transmission-gears g5 Q6 g7 revolves shaft f in the manner hereinbefore described.

Over the upper end of barrel b there is adapted to be projected the vertically-movable head of the machine which carries the folding-fingers, the needle, and the needleguard, such head being attached to a crossarm h of a vertical rod 7i', which slides in tube c and which is held against revolution by groove h2 and spline c. The head may be raised and lowered by suitable means-such, for instance, as a stirrup 'i and chain fi', which asses over ulle 2 and is connected to a pin h3 of rod h.

The head of the machine consists, essentially, of a tubular needle-holder j, an inclosed revoluble lapping device 7c, and a surrounding tubular revoluble needle-guard l.

The lapping device 7c is provided at its lower end with two concentrically-placed circular rows of fingers 7a 7a2, the fingers of each row corresponding in number and position to the fingers b' of barrel b, the latter being received between the fingers 7a k2 as the head of the machine is lowered upon the barrel.

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lapping device 7c may be revolved directly IOO Af-Le fingers k2 and is of such a length, preferably, that its eye-pointed end overlapsits root, Fig. 3. A circular adjustment of the needleholder j and needle m may be obtained by slacking a set-.screw j which binds the needle-holder to the cross-arm h, and then setting such holder by means of a handle j 2.

The needle-guard Z embraces the needleholder .f .Mft-l is held and guided thereon by circumferential groove jg on the needleholder, which is engaged by a pin Z of the needle-guard. The lower end of the needleguard Z terminates in fingers Z2, which embrace the needle m and prevent an outward bending or displacement of the same under tension. The fingers Z2 correspond in position to the fingers 7o k2, as well as-to the fingers b2, so that the slots between the several circles of fingers are always in radial alinement. A slotted screw Z3 on one of the fingers Z2 is adapted to hold the needle-thread when the needle is withdrawn from the web.

The needle-guardZ is revolved in unison with the lapping device Zt and preferably directly from the same. l The transmission is shown to be a' gear-wheel n, fast on spindle k3 of lapping device Zt and meshing into pinion n', fast on shaft n2, which carries also pinion n3, engaging external gear n4, fast on circumference of needle-guardl Z. A spring-pin o, carried by an arm 104 of spindle 7a2, enters at each revolution a shallow socket 71.4 of crossarm h to announce a complete revolution of the machine.

The operation is as follows: The machinehead is raised by stirrup t', and the mantle A to be folded and to be provided with a shirrin g-string is slipped over barrel b, a part of the mantle projecting above the lingers h', Fig. 4. The machine-head is now lowered so that the fingersY k k2 will embrace the fingers b and the inner fingers 7c will push the projecting or free end of the mantle down into the barrel, thus forming the doubled upper end A', Fig. 13. The handle g is now turned to simultaneously revolve barrelA b, lapping device Za, and needle-guard Z, together with mantle A, and to also actuate the folder e by revolving the shaftf. The result will be that the folder e will pass rapidly outward and backward through successive radial slots that are formed by the radially-placed fingers Zo 19"!02 Z2. In this way a series of folds are successively formed in the revolved mantle directly in front of the point of fixed needle m, which point is placed a short distance behind the path of the folder. As the mantle continually revolves these folds A2 are, by the folder e, which has also an oscillating in addition to its radial motion, Figs. 9 to 1l, pushed upon the needle which enters the eye e2. Thus the needle passes through the successive folds, Fig. 2, and connects them circumferentially by means of the asbestos needle-thread B. Upon a complete revolution of the barrel b the asbestos thread is severed by a knife 1o and its end drawn out and fastened to the screw Z3 by being-slipped into the nick of said screw or by looping it around the same. The machine is reversed to withdraw the needle, leaving the severed end of the thread attached to the screw, so that the thread remains in the web and is not withdrawn by the needle. The head is then raised and the mantle stripped off the barrel b, after which the operation is completed and the machine ready for the next mantle.

In lieu of making the mantle revoluble and the needle stationary, as described, it is evident that the needle may be `made revoluble and the mantle stationary.

It will be seen that by my machine the mantles are turned down, folded, and provided with a shirring-thread automatically in a simple, rapid, and uniform Ymanner and withoutthe use of skilled labor, thus greatly improving their construction and cheapenin g their manufacture.

What I claim is- 1. In a machine for folding and inserting shirring-strings into incandescent mantles, the combination of means for supporting a mantle, with means for turning down its end, means for forming folds in the doubled mantle end, and means for drawing a thread through such folds, substantially as specied.

2. In a machine for folding and inserting shirring-strings into incandescent mantles, the combination of means for supporting a mantle, with a lapping device for turning down the mantle end, a folder for forming folds in the doubled mantle end, and a curved needle adapted to engage said folds, substantially as specified.

3. In a machine for folding and inserting shirring-stri'ngs into incandescent mantles, the combination of a slotted mantle-supporting barrel, with a folder adapted to move outward through the barrel-slots and form radial folds, and a needle adapted to engage such folds, substantially as specified.

4. In a machine for folding and inserting shirring-strings into incandescent mantles, the combination of a slotted mantle-supporting barrel, with a vertically-movable slotted lapping device for turning down the mantle end, a radially-movable folder to form folds, and a needle adapted to engage said folds, substantially as specified.

5.' In a machine for folding and inserting shirring-strings into incandescent mantles, the combination of a slotted mantle-supporting barrel, with a folder movably secured within the barrel and adapted to move radially outward through the barrel-slots to form radial folds, and with a needle adapted to engage said folds, substantially as specified.

6. In a machine for folding and inserting shirring-strings into incandescent mantles, the combination of a slotted mantle-support- -ing barrel, with an inclosed revoluble shaft, a folder eccentrically pivoted to said shaft and adapted to move radially outward through the barrel-slots, to form radial folds, and with IOO IIO

a needle adapted to engage said folds, substantially as speciied.

7. In a machine for folding and inserting shirring-strings into incandescent mantles, the combination of a slotted mantle-supporting barrel, with a reciprocating folder, a lapping device adapted to be projected over the barrel, a needle-holder, and a curved needle secured to such holder, su bstantially as specilied.

8. In a machine for folding and inserting shirring-strings into incandescent mant-les, the combination of a mantle-supporting barrel, with a reciprocating folder, a lapping device adapted to be projected over the slotted barrel end, a needle placed at the outside of said lapping device, and a needle-guard embracing the needle, substantially as specified.

9. In a machine for folding and inserting shirring-strings into incandescent mantles, the combination of a slotted mantle-supporting barrel, with a reciprocating folder, a slotted lapping device adapted to be projected over the slot-ted barrel end, a needle-holder embracing the same, a curved needle secured ro the needle-holder, and a slotted needleguard embracing said holder, substantially as specified.

10. In a machine for folding and inserting shirring-strings into incandescent lnantles, the combination of a slotted mantle-supporting barrel, with a reciprocating folder, a lapping device having two concentric roWs of fingers adapted to be projected over the slotted barrel end, and a curved needle arranged at the outer side of the lapping device, substantially as specified.

l1. In a machine for folding and inserting shirring-strings into incandescent mantles, the combination of a slotted mantle-supporting barrel, with a reciprocating folder, a lapping device having two concentric rows of ngers adapted to loe projected over the slotted barrel end, a needle-holder surrounding the lapping device, a curved needle secured to the needle-holder, and a slotted needleguard surrounding said holder, substantially as specified.

HERBERT E. NVHITE.

Witnesses:

WILLIAM SCHULZ, F. v. BRIESEN. 

